KutKit Styptic Swabs
Ever get annoyed when you nick yourself shaving and it takes forever to stop bleeding? Yeah, me too. KutKit's styptic swabs are great for those situations. They look like regular cotton swabs, but gently "break" one end like a light stick, and the staunching liquid contained inside is released into the tip. Apply to the cut and the bleeding stops instantly, then you simply dispose of the swab.
The 12-swab pack fits easily into a travel/toiletries bag, so even if you're away from home on business or to attend an event, you don't have to deal with annoying cuts at the last minute.
Get a single 12-pack for $6 on Amazon. The double-pack (24 swabs total) is $14.